Tagged Questions

Use this tag for questions related to the changing/combining of files containing pictures or other images. (Dumps of filesystems are often called images, but handling those is not called image-manipulation)

I use ImageMagick to extract a linear swatch of unique colors from some image to explore different color palettes; list properties of these colors; and make an approximation of the "average" color - ...

I have a shell script running on an little Atom based Micro-ATX box that is doing some watchdog-like functions for a number of devices on a local network. One of the things it's doing is monitoring ...

I would like to add a still image inside a h264 video following an in and out point in time. I would like to use only opensource/free Linux/Debian packages.
I tried a lot of things with avconv like ...

I have SVG images produced by PlantUML, which has some parts of drawing outside of canvas. It makes it difficult to use such images and I need to crop drawing to canvas size. As I produce UML diagrams ...

I have an image Image.png. How do I use the ImageMagick command convert to make this file into a Image.jpg file with the following requirements:
File size is 200~500 kb.
Resolution in not less than ...

This is a question about image file cropping.
I recently posted a public notice to an Indian newspaper called the Free Press Journal. This is available online as The Free Press Epaper.
Now, one can ...

The JACK Audio Connection Kit (http://jackaudio.org/) is a really useful tool for working with audio on linux systems. It allows for both audio and MIDI data to be communicated between its clients, ...

I've got a lot of documents that I want to scan that require only modest editing.
Mainly trimming the edges, splitting in two (when I scan two pages in one scan), and possibly adjust the perspective ...

Is there a shell command that returns the pixel size of an image?
I'm trying to produce an animated gif starting from different gifs with different sizes using convert (e.g. convert -delay 50 1.gif ...

I can`t make this work. I have a lot of images and i want to rename his name and append image size to name using exiv2
exiv2 pr * prints all info about file
# exiv2 pr 9b523e5a002268fe5067a928
File ...

Is there any program under linux where I can do the following:
Suppose I have for example a scan of a drawing on a squared paper and suppose that the squares of the original paper have any distance ...

There are a lot of questions out there about how to convert a PDF file to a PNG image, but I'm looking to take a nice sharp PNG file and just basically wrap it or embed it in a PDF file without having ...

Morphing is "a special effect in motion pictures and animations that changes (or morphs) one image into another through a seamless transition", according to Wikipedia here. My friend recommended some ...

I'm searching for a tool for command line image manipulation. I want something similar to pinpoint presentation tool where I edit a file and can directly see the results on another window.
I can get ...

Is there a free and open source duplicate image finder for Linux based systems?
Finding exact duplicates (based on content, not file name) is sufficient for me, but the ability to find similar images ...

I have an application I have developed which is generating RGB PNG images with text on them via imageMagic, like so:
convert -size 1000x1000 -density 300 xc:white -pointsize 24 \
-fill "rgb(0,0,0)" ...

I have a folder with 100 jpg images. I want to convert these images into a multi-page pdf file, with all the images (cropped to A4 size). They are already in the correct rotation.
Which tools should ...

I've got a few tens of thousands of images all of 2000 pixel width, and I would like to pile them up in one big image of summed up height and 2000 pixel width. I guess there must be a way to do that ...

I often read some text with images and often happens that the text talks about an image that is on the next page and next page and previous page and I have to go back and forward and usually forget ...

Is there a software tool that will allow me to measure the length of a curved line? I have a series of lines in an image that I want to measure the length of. I have a tablet so I can trace over the ...